Ok, so we are having some weird issues with a few Dell Laptops. They are all Latitude models, two different customers and Dell Support hasn't been any help. Basically, the issue is the machines are getting VM low errors quite frequenty. They can't reboot without "Log Off' staying for close to 10 minutes. They are all D5410. They have all had the problem at one time or another. In one case, I removed EVERYTHING, reinstalled Windows and it's been fine. In another case, he's only had the problem since we moved him to a new domain last week (all network settings / software are the same), in yet another, it's been the issue since we pull it out of the box. I don't believe I have ANY D5410's that don't have the problem.
Hopefully this group of genious can help!